DBPapers
DOI: 10.5593/SGEM2015/B32/S13.029

LEVELS OF MANGANESE AND IRON IN SOIL AROUND THE MANAILA MINING AREA, NE OF ROMANIA

S. Iftode, D. S. Sirbu-Radasanu, R. Huzum, O. G. Iancu
Thursday 24 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-37-7 / ISSN 1314-2704, June 18-24, 2015, Book3 Vol. 2, 215-220 pp

ABSTRACT
The mining industry significantly contributes to the decrease of environmental quality by its waste, emission and associated environmental impacts. Nowadays a lot of attention has been drawn to the mining industry and its adverse impacts on the environment. Mining activity has been found to cause considerable changes to the environment, particularly the soil. The metals from the mine waste contents could be absorbed by plants and subsequently, significant quantities could be transferred into the food chain. Iron is classified among the most dangerous of environmental pollutant due to its toxicity and persistence in the environment. The present study was conducted on a number of 68 soil and rock samples collected from the mining perimeter of Mănăila (massive volcanic sulphide ore deposit that is exploited mainly for the Cu-rich pyrite and chalcopyrite content), Suceava County, Romania.
This paper focuses on the transitional metals (Fe, Mn) enrichment and the degree of contamination in soil surrounding the open pit in the Mănăila area. The Fe concentration ranges between 83920-530780 mg·kg-1in rocks and between 30152 – 68462 mg·kg-1 in soil samples. These indicate that Fe concentration in the soil samples could be related to the mining activities and its content in parent material.
The Mn concentration in the soil samples ranges between 161– 1258 mg·kg-1 and 6195-77446 mg·kg-1in rocks samples. This high level is also attributed to the mining activities in the area. The metal quantification in soil samples, using the contamination factor (CF) and enrichment factor (EF) denotes that the studied area is loaded with Fe and Mn. This study reveals that metal pollution from mining area is a threat for the population health and moreover it is important for policy makers and opinion leaders to find optimal solutions for the remediation of the environment.

Keywords: transitional metals, CF, EF, open pit, contaminants

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